eclipse如何正确导入web项目，参考视频：https://www.bilibili.com/video/BV1tV411x7Fb?spm_id_from=333.337.search-card.all.click&vd_source=825d3d7ea7fd6488824d9e1ce89f8716
二、我遇到的问题
Target runtime Apache Tomcat v7.0 is not defined解决办法：https://blog.csdn.net/weixin_43901882/article/details/99943618?spm=1001.2101.3001.6650.4&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-4-99943618-blog-88990328.pc_relevant_multi_platform_whitelistv4&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-4-99943618-blog-88990328.pc_relevant_multi_platform_whitelistv4&utm_relevant_index=5
然后运行Tomcat报错如下：The server cannot be started because one or more of the ports are invalid. Open the server editor and correct the invalid
这个错误是提示端口占用，解决步骤如下：
1.双击如下：
2.点击如下图标：
此处参考链接：https://blog.csdn.net/weixin_44242119/article/details/104084723?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-104084723-blog-103394377.pc_relevant_multi_platform_whitelistv4&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-104084723-blog-103394377.pc_relevant_multi_platform_whitelistv4&utm_relevant_index=1
此处也参考了链接：https://blog.csdn.net/hyt182380/article/details/103394377?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-103394377-blog-104084723.pc_relevant_multi_platform_whitelistv4&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-103394377-blog-104084723.pc_relevant_multi_platform_whitelistv4&utm_relevant_index=1
接下来，来运行项目了，在 eclipse 中调出其内置的浏览器？
然后启动服务器，并且访问页面：
http://localhost:8081/ch20/admin
备注：
在这里插入图片描述
出处：https://blog.csdn.net/wumingxiaoqiang/article/details/52658489
然后启动Tomcat服务器又报错了，Eclipse 启动tomcat报错：Server Tomcat v8.0 Server at localhost failed to start（已解决），参考链接：https://blog.csdn.net/Late_whale/article/details/107380816?spm=1001.2101.3001.6650.5&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-5-107380816-blog-78553369.pc_relevant_aa&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-5-107380816-blog-78553369.pc_relevant_aa&utm_relevant_index=5
备注2：Eclipse无法配置Tomcat 8.0 以上版本问题 A Tomcat 8.0 installation is expected
